1. Product Overview
The Avaya JEM24 Expansion Module (Model 7342879000) is an accessory designed to extend the functionality of compatible Avaya IP phones. It provides additional programmable buttons, allowing users quick access to frequently used features, contacts, or line appearances, thereby enhancing communication efficiency.

This image displays the Avaya JEM24 Expansion Module, a grey rectangular device with a central black display screen. On either side of the screen are two columns of clear, illuminated buttons, totaling 24 programmable keys. The Avaya logo is visible in red above the screen.
Key Features:
- Compatible with Avaya J169 and Avaya J179 IP phones.
- Provides an easy and convenient way to access frequently used features or contacts.
- 24 programmable buttons for enhanced call management.
2. Setup Instructions
Follow these steps to properly install your Avaya JEM24 Expansion Module:
- Unpack the Module: Carefully remove the JEM24 Expansion Module from its packaging. Verify that all components are present.
- Positioning: Place the expansion module next to your compatible Avaya J169 or J179 IP phone.
- Connect the Cable: Locate the dedicated expansion module port on your Avaya IP phone. Connect the provided cable from the JEM24 module to this port. Ensure the connection is secure.
- Power On: The expansion module typically draws power directly from the connected IP phone. Ensure your IP phone is powered on. The JEM24 module should initialize automatically.
- Configuration: Refer to your Avaya IP phone's administration guide or contact your system administrator for specific instructions on configuring the programmable buttons on the JEM24 module.
3. Operating Instructions
The Avaya JEM24 Expansion Module extends the functionality of your Avaya IP phone by providing additional programmable keys. Once configured, these keys can be used for various functions:
- Line Appearances: Access additional phone lines directly.
- Speed Dial: Program frequently called numbers for one-touch dialing.
- Feature Access: Activate phone features such as call transfer, conference, or voicemail access.
- Busy Lamp Field (BLF): Monitor the status of other extensions (e.g., busy, ringing, available).
The specific function of each button is determined during the configuration process by your system administrator. Press the desired button to activate its programmed function.
4. Maintenance
To ensure the longevity and optimal performance of your Avaya JEM24 Expansion Module, follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry, lint-free cloth to clean the exterior surfaces. Do not use liquid cleaners, aerosols, or harsh chemicals, as these can damage the device.
- Environment: Keep the module in a clean, dry environment, away from direct sunlight, excessive heat, and moisture.
- Handling: Handle the module with care. Avoid dropping it or subjecting it to strong impacts.
- Cables: Periodically check all cable connections to ensure they are secure and free from damage.
5. Troubleshooting
If you encounter issues with your Avaya JEM24 Expansion Module, try the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Module not recognized by phone | Loose cable connection; phone not restarted. | Ensure the connection cable between the module and the IP phone is securely plugged in. Restart the Avaya IP phone. |
| Buttons not responding | Module not configured; temporary software glitch. | Contact your system administrator to verify button configuration. Restart the Avaya IP phone. |
| Display is blank | No power; module not connected. | Check the connection to the IP phone. Ensure the IP phone is powered on. |
If the problem persists after attempting these solutions, please contact your system administrator or Avaya support.
6. Specifications
- Model Number: 7342879000
- Product Dimensions: 10 x 10 x 6 inches
- Item Weight: 16 ounces (0.45 Kilograms)
- Compatible Devices: Avaya J169 IP phone, Avaya J179 IP phone
- Manufacturer: Avaya
- Color: Silver
- Power Source: Corded Electric (powered via host IP phone)
- Number of Programmable Buttons: 24
7. Warranty and Support
The Avaya JEM24 Expansion Module is covered by Avaya's standard manufacturer's warranty. For specific details regarding warranty terms, duration, and coverage, please refer to the warranty documentation included with your purchase or visit the official Avaya website.
Customer Support:
For technical assistance, product inquiries, or warranty claims, please contact Avaya customer support through their official channels. You may find contact information on the Avaya website or in your product's packaging.
- Avaya Official Website: www.avaya.com
- System Administrator: For configuration and immediate support, contact your organization's IT or telecommunications administrator.







